71 lines
2.5 KiB
Bash
71 lines
2.5 KiB
Bash
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#!/usr/bin/env bash
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# ---------------------------------------------------------------------------
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# Generate Catppuccin Macchiato wallpapers with ImageMagick.
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# Shipping binary images in a config repo is rude, so we synthesise them.
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# usage: make-wallpaper.sh [output-dir] [WIDTHxHEIGHT]
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# ---------------------------------------------------------------------------
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set -euo pipefail
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OUT_DIR="${1:-${XDG_DATA_HOME:-$HOME/.local/share}/wallpapers}"
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GEOM="${2:-3840x2160}"
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W="${GEOM%x*}"
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H="${GEOM#*x}"
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# ImageMagick 7 uses `magick`; 6 uses `convert`.
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if command -v magick >/dev/null 2>&1; then IM=(magick)
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elif command -v convert >/dev/null 2>&1; then IM=(convert)
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else
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echo "make-wallpaper: ImageMagick not found — skipping wallpaper generation" >&2
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exit 0
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fi
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mkdir -p "$OUT_DIR"
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base="#24273a"
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mantle="#1e2030"
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crust="#181926"
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mauve="#c6a0f6"
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blue="#8aadf4"
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teal="#8bd5ca"
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pink="#f5bde6"
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# --- 1. soft diagonal gradient --------------------------------------------
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"${IM[@]}" -size "${W}x${H}" \
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"gradient:${mantle}-${crust}" \
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-rotate 45 -gravity center -extent "${W}x${H}" \
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-blur 0x24 \
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"$OUT_DIR/macchiato-gradient.png"
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# --- 2. radial glow over the base colour ----------------------------------
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"${IM[@]}" -size "${W}x${H}" "xc:${base}" \
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\( -size "${W}x${H}" "radial-gradient:${mauve}-${base}" -alpha set -channel A -evaluate multiply 0.22 +channel \) \
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-compose over -composite \
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\( -size "${W}x${H}" "radial-gradient:${teal}-${base}" -alpha set -channel A -evaluate multiply 0.12 +channel -roll +$((W/3))+$((H/3)) \) \
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-compose over -composite \
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-blur 0x40 \
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"$OUT_DIR/macchiato-glow.png"
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# --- 3. subtle triangle/mosaic texture ------------------------------------
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"${IM[@]}" -size "$((W/12))x$((H/12))" "xc:${base}" \
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+noise Gaussian -blur 0x2 -normalize \
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-level 40%,60% \
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-fill "${base}" -colorize 82% \
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-resize "${W}x${H}!" -blur 0x3 \
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"$OUT_DIR/macchiato-texture.png"
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# --- 4. flat base, for people who want zero distraction -------------------
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"${IM[@]}" -size "${W}x${H}" "xc:${base}" "$OUT_DIR/macchiato-flat.png"
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# --- 5. logo-ish centred mark on the gradient -----------------------------
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"${IM[@]}" "$OUT_DIR/macchiato-gradient.png" \
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-gravity center \
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-fill "${mauve}" -stroke none \
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-draw "circle $((W/2)),$((H/2)) $((W/2)),$((H/2 - H/9))" \
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-fill "${base}" \
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-draw "circle $((W/2)),$((H/2)) $((W/2)),$((H/2 - H/9 + H/90))" \
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-blur 0x1 \
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"$OUT_DIR/macchiato-ring.png"
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echo "wallpapers written to $OUT_DIR:"
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ls -1 "$OUT_DIR"
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